Move to_chain and to_render to Groupped trait

4 files changed, 38 insertions, 36 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4dc1aa9..9875171 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -195,6 +195,28 @@ use mingling::{res::ExitCode, REPL};
 use mingling::{res::ResExitCode, res::ResREPL};
 ```
 
+3. **\[core\]** **\[macros\]** Migrated `to_chain()` and `to_render()` methods from being generated individually per type by `#[derive(Groupped)]` and `pack!` macros, to being provided as default trait methods on the `Groupped` trait itself.
+
+   Previously, each packed or derived type had its own inherent `to_chain()` and `to_render()` methods generated by the macros. Now, these methods are defined on the `Groupped<Group>` trait with default implementations, making them available to all types that implement the trait without redundant code generation.
+
+   ```rust
+   // Before (generated per type by macros):
+   impl MyType {
+       pub fn to_chain(self) -> ChainProcess<Group> {
+           AnyOutput::new(self).route_chain()
+       }
+       pub fn to_render(self) -> ChainProcess<Group> {
+           AnyOutput::new(self).route_renderer()
+       }
+   }
+
+   // After (provided by Groupped trait default methods):
+   // just ensure Groupped is implemented — to_chain() and to_render()
+   // are automatically available
+   ```
+
+   Removed the per-type inherent method generation from both `groupped.rs` and `pack.rs` in `mingling_macros`.
+
 ### Release 0.1.9 (2026-05-29)
 
 #### Fixes:
diff --git a/mingling_core/src/any/group.rs b/mingling_core/src/any/group.rs
index 04701f2..c251286 100644
--- a/mingling_core/src/any/group.rs
+++ b/mingling_core/src/any/group.rs
@@ -1,5 +1,21 @@
+use crate::{AnyOutput, ChainProcess};
+
 /// Used to mark a type with a unique enum ID, assisting dynamic dispatch
 pub trait Groupped<Group> {
     /// Returns the specific enum value representing its ID within that enum
     fn member_id() -> Group;
+
+    /// Converts the grouped item into a `ChainProcess` directed to the chain route.
+    ///
+    /// This wraps the item into an `AnyOutput` and routes it to the chain processing pipeline.
+    fn to_chain(self) -> ChainProcess<Group> {
+        AnyOutput::new(self).route_chain()
+    }
+
+    /// Converts the grouped item into a `ChainProcess` directed to the render route.
+    ///
+    /// This wraps the item into an `AnyOutput` and routes it to the render processing pipeline.
+    fn to_render(self) -> ChainProcess<Group> {
+        AnyOutput::new(self).route_renderer()
+    }
 }
diff --git a/mingling_macros/src/groupped.rs b/mingling_macros/src/groupped.rs
index 534e2a6..03f0b9c 100644
--- a/mingling_macros/src/groupped.rs
+++ b/mingling_macros/src/groupped.rs
@@ -92,18 +92,6 @@ fn build_any_output_convert_impls(
                 ::mingling::AnyOutput::new(self).route_chain()
             }
         }
-
-        impl #struct_name {
-            /// Converts the wrapper type into a `ChainProcess` for chaining operations.
-            pub fn to_chain(self) -> ::mingling::ChainProcess<#group_ident> {
-                ::mingling::AnyOutput::new(self).route_chain()
-            }
-
-            /// Converts the wrapper type into a `ChainProcess` for rendering operations.
-            pub fn to_render(self) -> ::mingling::ChainProcess<#group_ident> {
-                ::mingling::AnyOutput::new(self).route_renderer()
-            }
-        }
     }
     .into()
 }
diff --git a/mingling_macros/src/pack.rs b/mingling_macros/src/pack.rs
index 5a1c388..bf2536d 100644
--- a/mingling_macros/src/pack.rs
+++ b/mingling_macros/src/pack.rs
@@ -187,18 +187,6 @@ pub fn pack(input: TokenStream) -> TokenStream {
                 mingling::AnyOutput::new(self).route_chain()
             }
         }
-
-        impl #type_name {
-            /// Converts the wrapper type into a `ChainProcess` for chaining operations.
-            pub fn to_chain(self) -> mingling::ChainProcess<#group_name> {
-                mingling::AnyOutput::new(self).route_chain()
-            }
-
-            /// Converts the wrapper type into a `ChainProcess` for rendering operations.
-            pub fn to_render(self) -> mingling::ChainProcess<#group_name> {
-                mingling::AnyOutput::new(self).route_renderer()
-            }
-        }
     };
 
     let group_impl = quote! {
@@ -234,18 +222,6 @@ pub fn pack(input: TokenStream) -> TokenStream {
                 }
             }
 
-            impl #type_name {
-                /// Converts the wrapper type into a `ChainProcess` for chaining operations.
-                pub fn to_chain(self) -> mingling::ChainProcess<#group_name> {
-                    mingling::AnyOutput::new(self).route_chain()
-                }
-
-                /// Converts the wrapper type into a `ChainProcess` for rendering operations.
-                pub fn to_render(self) -> mingling::ChainProcess<#group_name> {
-                    mingling::AnyOutput::new(self).route_renderer()
-                }
-            }
-
             impl ::mingling::Groupped<#group_name> for #type_name {
                 fn member_id() -> #group_name {
                     #group_name::#type_name